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Old 04-06-2010, 14:05   #31
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It's one of these drilling through the hull

http://www.dailymail.co.uk/sciencete...woodlouse.html
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Old 15-06-2010, 09:01   #32
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I too was shocked the first time I heard them "munching" on Echo's hull. Our only other sailboat we had was Phoenix, our Cal 9.2 up in Lake Texoma, and were used to the sounds of Carp munching on alge on our hull. We had cleaned all the barnacles off Echo's hull, and I still here the "snap, crackle and pop" going on, night and day. I thought, OMG! Blisters!!!! Oh well, we live and learn don't we...... LOL!
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Old 16-06-2010, 20:32   #33
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Yeah l hear that at night too, it was weird at first. Then it becomes back round noise... didn't know it was little shrimp, thats pretty cool.
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Old 17-06-2010, 02:40   #34
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Geese and ducks tend to peck at our hull in the very early morning hours, and in the foggy cognition of our mental states it sounds exactly like water trickling in. I've woken up in a panic more than once because of this.
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Old 20-06-2010, 02:56   #35
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I have always been told that that noise is fish and other creatures eating.

You also hear it when swimming, snorkeling and scuba diving if you listen carefully. I think the hull of the boat just works like an amplifier, catching the sound like a speaker's skin. You hear it at night because other ambient noise (and your stereo!) are off as you're going to bed.

Don't worry about it - its the symphony of the sea!!
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Old 20-06-2010, 11:31   #36
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Cavitation on props of passing boats, or the shrimps (which again is cavitation) or the bubbles of methane, or ...

But most often it is the shrimps or the passing ships methinks.

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Old 20-06-2010, 12:30   #37
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Weird Sounds from Below What is it?

Nicolle!


Talk about smell.............
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Old 20-06-2010, 12:40   #38
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if is a pounding or slapping noise,is the sound of the hull going thru the seas--wave hitting the hull.... check it out----pay good attention -- see if it correlates with the movement if the boat thru the seas and where is the noise coming from -is it where the seas hit the boat?/at anchor there are krill(brine shrimp)--sounding like rice krispies in milk!--and the duckies feeding off them and seas making noises--these 3 are always heard better thru the newer more modern thinner hulls than thru the older thicker fiberglass hulls made in the 1955-1980 era......occasionally a pelican may hit hull as a mistake--had that happen in manatee river 3 times in 1 hour--same silly pelican hit hull catching dinner..ribbon fish also hit hull in seas in gulf-i should say==USED to hit hull...
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Old 20-06-2010, 12:51   #39
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You also hear it when swimming, snorkeling and scuba diving if you listen carefully.
Absolutely, plus the sound disappears as we go deeper than 30m. Remember sound travels much better underwater.

So you need a trap, a piece of old fish and some curry sauce to cook them in

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Old 16-07-2010, 21:12   #40
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Serrano got it right... good job. it usually means there is a healthy community beneath your hull.
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Old 17-07-2010, 07:00   #41
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The sounds I mentioned in my post above from a year ago sound like the cusk eel on this site: Run Noisy, Run Deep - Interactive Feature - NYTimes.com

Problem is the cusk eel lives at 2,000 feet! But the sound that has stumped us for years sounds just like it.

Oops, never mind - I just found another website that says they also live in coastal waters.

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Old 17-07-2010, 15:42   #42
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I say you dive in the water with a flash light and check it out lol I honestly would. It's like when people say "there is something in those woods" people run to see it lol that's me yup yup
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